1085432415677 has 2 divisors, whose sum is σ = 1085432415678. Its totient is φ = 1085432415676.

The previous prime is 1085432415643. The next prime is 1085432415689. The reversal of 1085432415677 is 7765142345801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1054854297721 + 30578117956 = 1027061^2 + 174866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1085432415677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1085432415607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542716207838 + 542716207839.

It is an arithmetic number, because the mean of its divisors is an integer number (542716207839).

Almost surely, 2^{1085432415677} is an apocalyptic number.

It is an amenable number.

1085432415677 is a deficient number, since it is larger than the sum of its proper divisors (1).

1085432415677 is an equidigital number, since it uses as much as digits as its factorization.

1085432415677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 1085432415677 in words is "one trillion, eighty-five billion, four hundred thirty-two million, four hundred fifteen thousand, six hundred seventy-seven".